US8495876B2 - Two-stage supercharging system with exhaust gas purification device for internal-combustion engine and method for controlling same - Google Patents

Two-stage supercharging system with exhaust gas purification device for internal-combustion engine and method for controlling same Download PDF

Info

Publication number
US8495876B2
US8495876B2 US12/757,060 US75706010A US8495876B2 US 8495876 B2 US8495876 B2 US 8495876B2 US 75706010 A US75706010 A US 75706010A US 8495876 B2 US8495876 B2 US 8495876B2
Authority
US
United States
Prior art keywords
exhaust gas
turbine
pressure
exhaust
turbocharger
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related, expires
Application number
US12/757,060
Other languages
English (en)
Other versions
US20100263372A1 (en
Inventor
Alexandre Pagot
Eric Watel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IFP Energies Nouvelles IFPEN
Original Assignee
IFP Energies Nouvelles IFPEN
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by IFP Energies Nouvelles IFPEN filed Critical IFP Energies Nouvelles IFPEN
Assigned to IFP reassignment IFP ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: Watel, Eric, PAGOT, ALEXANDRE
Publication of US20100263372A1 publication Critical patent/US20100263372A1/en
Application granted granted Critical
Publication of US8495876B2 publication Critical patent/US8495876B2/en
Expired - Fee Related legal-status Critical Current
Adjusted expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/12—Control of the pumps
    • F02B37/18—Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/103—Oxidation catalysts for HC and CO only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/004—Engines characterised by provision of pumps driven at least for part of the time by exhaust with exhaust drives arranged in series
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/013—Engines characterised by provision of pumps driven at least for part of the time by exhaust with exhaust-driven pumps arranged in series
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/12—Control of the pumps
    • F02B37/16—Control of the pumps by bypassing charging air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/02—EGR systems specially adapted for supercharged engines
    • F02M26/04—EGR systems specially adapted for supercharged engines with a single turbocharger
    • F02M26/05—High pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust system upstream of the turbine and reintroduced into the intake system downstream of the compressor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/35—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with means for cleaning or treating the recirculated gases, e.g. catalysts, condensate traps, particle filters or heaters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • the present invention relates to a two-stage supercharging system for an internal-combustion engine and to a method for controlling same.
  • the power generated by an internal-combustion engine depends on the amount of air fed into the combustion chamber of this engine. This air is mixed with fuel so as to achieve combustion of the mixture thus obtained.
  • this amount of air is itself proportional to the density of this air, if high power is required, an increase in this amount of air is provided by compression. This compression is generally performed before the air is allowed into this combustion chamber.
  • This operation is usually carried out by a compressor driven by a turbine scavenged by the exhaust gas of the engine, more commonly referred to as turbocharger.
  • these two stages are arranged in series in relation to one another and they consist of two turbochargers, a high-pressure (HP) turbocharger and a low-pressure (LP) turbocharger.
  • HP turbocharger is more particularly suited for low flow rates whereas the LP turbocharger is suited for higher flow rates.
  • turbochargers consist each of an expansion turbine connected by a drive shaft to a compressor. These two turbochargers are so laid out that the turbine of the HP turbocharger, supplied with the exhaust gas taken from the engine exhaust pipe, supplies in turn the turbine of the LP turbocharger while the compressor of the LP turbocharger supplies the compressor of the HP turbocharger.
  • EGR circuit a burnt gas recirculation circuit referred to as EGR circuit.
  • This circuit essentially comprises a line, referred to as EGR line, allowing exhaust gas to be introduced from a branch connection on the exhaust pipe of this engine (generally at the exhaust manifold outlet) to a connection point at the intake thereof (more precisely to the intake distributor).
  • This EGR circuit thus allows exhaust gas to be added to the fuel mixture, notably in order to decrease the production of nitrogen oxides (NOx) by reducing the combustion temperature of this mixture.
  • NOx nitrogen oxides
  • An additional gas purification means is also housed upstream from this EGR line and downstream from the exhaust.
  • This purification means referred to as precatalyst hereafter, adds further to the main exhaust gas purification device that all engines are usually equipped with in form of a catalyst.
  • this main catalyst which is initially at ambient temperature, has to be heated by the exhaust gas flowing therethrough until it reaches a sufficient temperature level for its light-off.
  • the precatalyst In order to minimize the discharge of pollutants to the atmosphere, the precatalyst is intended to reach more rapidly its light-off temperature than the main catalyst considering that it is located closer to the exhaust outlet. This precatalyst thus allows part of the pollutants of these gases to be treated more rapidly.
  • this precatalyst is advantageously an oxidation precatalyst allowing the HC (unburnt hydrocarbons) and the CO (carbon monoxide) contained in the exhaust gas to be treated.
  • the present invention aims to overcome the aforementioned drawbacks by means of a system that provides the same functionalities of the supercharging system while allowing the exhaust gas of the EGR circuit to be purified.
  • the invention therefore relates to a two-stage supercharging system for an internal-combustion engine comprising at least one cylinder with an intake distributor and an exhaust manifold, as well as a recirculation line for recycling the exhaust gas to the intake of said engine, said system comprising a high-supercharging stage with a turbocharger including an expansion turbine connected to a compressor and a low-pressure supercharging stage with a turbocharger including an expansion turbine connected to a compressor, and exhaust gas purification means arranged between the exhaust outlet and the turbine of the high-pressure turbocharger, characterized in that it comprises an exhaust gas bypass branch going from the outlet of the engine exhaust and ending at the turbine of the low-pressure turbocharger.
  • the bypass branch can comprise a throttle means.
  • the throttle means can comprise a multi-position valve.
  • the bypass branch can end at a junction point on a line connecting the outlet of the high-pressure turbocharger turbine to the intake of the low-pressure turbocharger turbine.
  • the exhaust gas purification means can be located between the exhaust gas outlet and the exhaust gas recirculation line.
  • the invention also relates to a method of controlling a two-stage supercharging system for an internal-combustion engine comprising at least one cylinder with an intake distributor and an exhaust manifold, as well as a recirculation line for recycling the exhaust gas to the intake of said engine, said system comprising a high-pressure supercharging stage with a turbocharger including an expansion turbine connected to a compressor and a low-pressure supercharging stage with a turbocharger including an expansion turbine connected to a compressor, and exhaust gas purification means arranged between the exhaust outlet and the turbine of the high-pressure turbocharger, characterized in that it consists, for an engine operating mode, in sending, from the exhaust outlet, part of the exhaust gas to a bypass branch ending at the turbine of the low-pressure turbocharger and the other part of this exhaust gas to a line connected to the gas recirculation line.
  • the method can consist, for another engine operating mode, in preventing, from the exhaust outlet, circulation of the exhaust gas towards the bypass branch and in sending the exhaust gas to the line carrying this gas to the gas recirculation line and to the intake of the high-pressure turbocharger turbine.
  • the method can consist in sending the gas circulating in the line through the exhaust gas purification means.
  • FIG. 1 illustrates a two-stage supercharging system with an additional exhaust gas purification device for an internal-combustion engine according to the invention
  • FIG. 2 shows the engine of FIG. 1 according to a first operating configuration
  • FIG. 3 shows the engine of FIG. 1 according to a second operating configuration
  • FIG. 4 shows the engine of FIG. 1 according to a third operating configuration.
  • internal-combustion engine 10 in particular a direct-injection engine, notably of diesel type, comprises at least one cylinder 12 with a combustion chamber 14 wherein combustion of a fuel mixture takes place.
  • This engine also comprises an intake distributor 16 used for supplying a fluid required to achieve a fuel mixture in the combustion chambers.
  • fluid is a mixture of supercharged air and of recirculated exhaust gas.
  • the exhaust gas resulting from the combustion of the fuel mixture contained in the combustion chambers is discharged to an exhaust manifold 18 .
  • Supercharging system 20 comprises two turbocompression stages with a first stage consisting of a HP turbocharger 22 and a second stage consisting of a LP turbocharger 24 .
  • Each turbocharger comprises a turbine 26 , 28 driving into rotation a compressor 30 , 32 by means of a shaft 34 , 36 .
  • the two turbochargers are arranged in such a way in relation to one another that expansion turbine 26 of HP turbocharger 22 (or HP turbine) can supply expansion turbine 28 of LP turbocharger 24 (or LP turbine) and that compressor 30 of the HP turbocharger (or HP compressor) can be supplied by compressor 32 of the LP turbocharger (or LP compressor).
  • an exhaust gas circulation line 38 connects outlet pipe 40 of exhaust manifold 18 to intake 42 of the HP turbine whose outlet 44 is connected to intake 46 of LP turbine 28 by an exhaust gas circulation line 48 .
  • Outlet 50 of the LP turbine is connected to exhaust line 52 that any engine is usually provided with.
  • this line is fitted with a main exhaust gas purification means (not shown), such as a catalyst, notably a three-way catalyst.
  • Intake 54 of LP compressor 32 is supplied with an exterior fluid such as air through a supply line 56 .
  • Outlet 58 of the LP compressor is connected by an air circulation line 60 to intake 60 of HP air compressor 30 , and outlet 64 of this compressor is connected by an air circulation line 66 to inlet 68 of intake distributor 16 .
  • upstream and downstream used in the description hereafter are employed with reference to the direction of circulation of the exhaust gas between exhaust manifold 18 and exhaust line 52 , or to the direction of circulation of the fluid between supply line 56 and intake distributor 16 .
  • An exhaust gas bypass branch 70 originates at a branch connection 72 upstream from HP turbine 26 at the intersection of line 38 and outlet pipe 40 of the manifold. This branch ends at a junction point 74 on line 48 between outlet 44 of the HP turbine and intake 46 of the LP turbine.
  • This branch comprises, between the branch connection and the junction point, a throttle means 76 allowing the exhaust gas circulation to be controlled.
  • this throttle means is a multi-position valve between a fully open position of this branch and a fully closed position.
  • this valve is controlled by any means generally known to the person skilled in the art, under the control of the engine calculator of this engine.
  • a line 78 referred to as EGR (Exhaust Gas Recirculation) line allows the exhaust gas of the engine to be fed back to the intake thereof. More precisely, this line connects a connection point 80 on line 38 , upstream from HP turbine 26 and downstream from branch connection 72 , to another connection point 82 of line 66 .
  • EGR exhaust Gas Recirculation
  • This exhaust gas recirculation to the engine intake is conventionally used to reduce emissions of some pollutants such as nitrogen oxides (NOx) that are discharged upon combustion of the fuel mixture.
  • NOx nitrogen oxides
  • this EGR line can carry a heat exchanger allowing the exhaust gas flowing therethrough to be cooled, as well as a valve, commonly known as EGR valve, allowing to control circulation of the exhaust gas in this EGR line.
  • the HP compression stage comprises a short-circuit line 4 of HP compressor 30 .
  • This line starts from an upstream point 86 of line 60 between the HP and LP compressors and it ends at a downstream point 88 between outlet 64 of the HP compressor and connection point 82 of the EGR line.
  • This line carries, between the upstream and downstream points, a throttle means 90 allowing the air circulation to be controlled.
  • An additional exhaust gas purification means 92 is arranged on line 38 between connection point 80 of the EGR line and branch connection 72 with branch 70 .
  • This precatalyst is usually a porous body traversed by the exhaust gas and it comprises catalytic phases allowing to react some of the exhaust gas pollutants with these catalytic phases.
  • this precatalyst is arranged as close as possible to exhaust gas outlet 40 so as to benefit to the maximum from the heat contained in this gas.
  • This precatalyst thus warms up more rapidly and it reaches its light-off temperature faster.
  • this precatalyst is intended to treat notably the HC and the CO contained in the exhaust gas.
  • valve 76 is controlled in a fully closed position of branch 70 , thus preventing any exhaust gas circulation therein, as illustrated in FIG. 2 .
  • valve 90 is controlled in closed position so as to prevent any air circulation in short-circuit line 84 .
  • the exhaust gas coming from outlet pipe 40 of manifold 18 circulates in line 38 (arrow F 1 ) and flows through precatalyst 92 .
  • This precatalyst treats the HC and CO pollutants contained in the gas by eliminating a very large part of this gas.
  • connection point 80 where it divides into two streams, a first stream F 2 sent to HP turbine 26 and a second stream F 3 sent to EGR line 78 for recirculation of the exhaust gas to the engine intake.
  • Exhaust gas stream F 2 reaches intake 42 of HP turbine 26 with such a pressure and energy that the gas drives into rotation the rotor this turbine is equipped with. This gas is then discharged from the turbine through outlet 44 and it circulates in line 48 through which it is carried to intake 46 of LP turbine 2 S. The gas is then discharged into exhaust line 52 through outlet 50 of the LP turbine.
  • This air is then allowed into intake 62 of HP compressor 30 whose rotor is driven into rotation by drive shaft 34 connected to HP turbine 26 . Through this rotation, the air is compressed and it is discharged, in compressed form, through outlet 64 from where it reaches connection point 82 . From this point, this compressed air mixes with exhaust gas stream F 3 circulating in EGR line 78 .
  • the mixture of compressed air and of exhaust gas is then sent through line 66 to inlet 68 of intake distributor 16 so as to eventually obtain a fuel mixture capable of burning in combustion chambers 14 .
  • stream F 3 consisting of the exhaust gas mixed with the compressed air and recirculated to the intake is freed of a large part of its pollutants.
  • exhaust gas stream F 2 is depolluted and reaches outlet 50 of the LP turbine purified.
  • HP turbocharger 22 will take all the required steps to configure HP turbocharger 22 in such a way that it is fully active for the amount of energy of the exhaust gas coming from the engine running under idle or low load conditions.
  • valve 76 for branch 70 and valve 90 for short-circuit line 84 kept in closed position.
  • Exhaust gas stream F 2 flows through HP turbine 26 and drives into rotation the rotor of this turbine. This gas is then discharged from the HP turbine and it reaches LP turbine 28 with sufficient exhaust gas pressure and energy to drive into rotation the rotor of this LP turbine.
  • exhaust gas stream F 2 allows rotation of the two turbines 26 and 28 which, in turn, drive into rotation the two compressors 30 and 32 by means of drive shafts 34 and 36 .
  • the fresh air flowing in through line 56 flows through LP compressor 32 while being compressed to a first level (of the order of some hundred millibars above atmospheric pressure). This compressed air is then allowed into HP compressor 30 which it leaves in compressed state with a higher pressure than at the outlet of LP compressor 32 .
  • connection point 82 where it mixes with exhaust gas stream F 3 circulating in EGR line 78 .
  • the mixture of compressed air and of exhaust gas is then sent through line 66 to inlet 68 of intake distributor 16 so as to eventually obtain a fuel mixture capable of burning in combustion chambers 14 .
  • the exhaust gas mixed with compressed air and recirculated to the intake, as well as the exhaust gas discharged to the atmosphere through the exhaust line, are freed of a large part of the pollutants they contained.
  • valve 76 is in fully open position of bypass branch 70 and valve 90 allows air circulation in short-circuit line 84 of LP compressor 32 .
  • the exhaust gas discharged from manifold 18 preferably follows the high-permeability circuit. More precisely, this gas flows into bypass branch 70 , thus bypassing HP turbine 26 . Only LP turbine 28 is therefore driven into rotation by the exhaust gas, thus making HP turbocharger 22 inoperative. Similarly, as it is generally the case, the pressure difference between the intake and the exhaust promotes the development of a gas flow from the exhaust to the intake and the exhaust gas follows line 38 in order to be recirculated to the engine intake.
  • the exhaust gas divides, from outlet 40 , into two streams of different capacities, a low-capacity stream F 1 sent to precatalyst 92 and a high-capacity stream F 4 sent to bypass branch 70 .
  • Stream F 4 reaches intake 46 of LP turbine 28 while driving its rotor into rotation. This gas is then discharged into exhaust line 52 through outlet 50 of the LP turbine. Since the main purification device arranged on exhaust line 52 has reached its light-off temperature, the exhaust gas is treated prior to being discharged to the atmosphere.
  • Stream F 1 flows through precatalyst 92 , reaches connection point 80 and circulates in EGR line 78 up to the other connection point 82 .
  • the fresh air thus flows in through supply line 56 and it flows through LP compressor 32 where it is compressed and which it leaves at a high pressure prior to reaching upstream point 86 of line 84 .
  • This compressed air circulates in line 84 and reaches downstream point 88 on line 66 .
  • the compressed air then reaches connection point 82 where it mixes with the exhaust gas stream circulating in EGR line 78 .
  • the mixture of compressed air and of exhaust gas is then sent through line 66 to inlet 68 of intake distributor 16 so as to obtain the fuel mixture that burns in combustion chambers 14 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Toxicology (AREA)
  • Materials Engineering (AREA)
  • Supercharger (AREA)
  • Exhaust-Gas Circulating Devices (AREA)
  • Exhaust Gas After Treatment (AREA)
US12/757,060 2009-04-16 2010-04-09 Two-stage supercharging system with exhaust gas purification device for internal-combustion engine and method for controlling same Expired - Fee Related US8495876B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0901861A FR2944560B1 (fr) 2009-04-16 2009-04-16 Systeme de suralimentation a double etage avec dispositif d'epuration de gaz d'echappement pour moteur a combustion interne et procede pour commander un tel systeme
FR09/01.861 2009-04-16
FR0901861 2009-04-16

Publications (2)

Publication Number Publication Date
US20100263372A1 US20100263372A1 (en) 2010-10-21
US8495876B2 true US8495876B2 (en) 2013-07-30

Family

ID=41259410

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/757,060 Expired - Fee Related US8495876B2 (en) 2009-04-16 2010-04-09 Two-stage supercharging system with exhaust gas purification device for internal-combustion engine and method for controlling same

Country Status (5)

Country Link
US (1) US8495876B2 (fr)
EP (1) EP2241742A1 (fr)
JP (1) JP5530239B2 (fr)
CN (1) CN101865018A (fr)
FR (1) FR2944560B1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160290218A1 (en) * 2015-04-02 2016-10-06 Ford Global Technologies, Llc Internal combustion engine with two-stage supercharging capability and with exhaust-gas aftertreatment arrangement, and method for operating an internal combustion engine of said type
WO2020109143A1 (fr) 2018-11-27 2020-06-04 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Systèmes d'expression multiprotéiques destinés à la lutte contre les organismes nuisibles

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2372122B1 (fr) * 2008-12-26 2014-12-24 Toyota Jidosha Kabushiki Kaisha Dispositif de purification de gaz d'échappement pour moteur à combustion interne avec compresseur volumétrique
DE102010043027B4 (de) * 2010-10-27 2019-08-14 Mtu Friedrichshafen Gmbh Brennkraftmaschine
JP6215848B2 (ja) * 2012-02-21 2017-10-18 アカーテース パワー，インク． 対向ピストン式２ストロークエンジンのための排気管理戦略
EP2687696A1 (fr) * 2012-07-18 2014-01-22 Caterpillar Motoren GmbH & Co. KG Système de traitement de gaz d'échappement compact et son procédé de fonctionnement
JP6024694B2 (ja) * 2014-03-25 2016-11-16 トヨタ自動車株式会社 過給機を備えた内燃機関の排気浄化システム
KR101628114B1 (ko) * 2014-10-29 2016-06-08 현대자동차 주식회사 배기 가스의 흐름을 제어하는 엔진 시스템
JP2021161984A (ja) * 2020-04-01 2021-10-11 マツダ株式会社 過給機付きエンジン

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004097195A1 (fr) * 2003-05-02 2004-11-11 Daimlerchrysler Ag Systeme de turbocompresseur et procede de fonctionnement d'un systeme de turbocompresseur
WO2008155268A1 (fr) 2007-06-21 2008-12-24 Robert Bosch Gmbh Moteur à combustion interne avec turbocompression à deux étages et catalyseur d'oxydation
US7975478B2 (en) * 2007-06-26 2011-07-12 International Engine Intellectual Property Company, Llc Internal combustion engine having compressor with first and second tributary inlets

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52156219A (en) * 1976-06-23 1977-12-26 Toyota Motor Corp Exhaust gas refluxer for internal combustion engine
JPH0647932B2 (ja) * 1987-06-10 1994-06-22 ヤンマーディーゼル株式会社 排気タ−ボ過給機付内燃機関の排気ガス処理装置
JP4320979B2 (ja) * 2001-06-12 2009-08-26 トヨタ自動車株式会社 内燃機関
US6651432B1 (en) * 2002-08-08 2003-11-25 The United States Of America As Represented By The Administrator Of The Environmental Protection Agency Controlled temperature combustion engine
EP1689997B1 (fr) * 2002-11-13 2014-12-17 Honeywell International Inc. Systemes de recirculation des gaz d'echappement doubles et hybrides utilises avec un moteur turbocompresse
JP2004204699A (ja) * 2002-12-24 2004-07-22 Hino Motors Ltd 排気浄化装置
US7013879B2 (en) * 2003-11-17 2006-03-21 Honeywell International, Inc. Dual and hybrid EGR systems for use with turbocharged engine
JP5031250B2 (ja) * 2006-03-29 2012-09-19 いすゞ自動車株式会社 エンジンの三段過給システム
US7377270B2 (en) * 2006-10-23 2008-05-27 Caterpillar Inc. Exhaust gas recirculation in a homogeneous charge compression ignition engine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004097195A1 (fr) * 2003-05-02 2004-11-11 Daimlerchrysler Ag Systeme de turbocompresseur et procede de fonctionnement d'un systeme de turbocompresseur
WO2008155268A1 (fr) 2007-06-21 2008-12-24 Robert Bosch Gmbh Moteur à combustion interne avec turbocompression à deux étages et catalyseur d'oxydation
US7975478B2 (en) * 2007-06-26 2011-07-12 International Engine Intellectual Property Company, Llc Internal combustion engine having compressor with first and second tributary inlets

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160290218A1 (en) * 2015-04-02 2016-10-06 Ford Global Technologies, Llc Internal combustion engine with two-stage supercharging capability and with exhaust-gas aftertreatment arrangement, and method for operating an internal combustion engine of said type
US9903268B2 (en) * 2015-04-02 2018-02-27 Ford Global Technologies, Llc Internal combustion engine with two-stage supercharging capability and with exhaust-gas aftertreatment arrangement, and method for operating an internal combustion engine
WO2020109143A1 (fr) 2018-11-27 2020-06-04 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Systèmes d'expression multiprotéiques destinés à la lutte contre les organismes nuisibles

Also Published As

Publication number Publication date
EP2241742A1 (fr) 2010-10-20
FR2944560B1 (fr) 2011-04-01
FR2944560A1 (fr) 2010-10-22
CN101865018A (zh) 2010-10-20
JP2010249140A (ja) 2010-11-04
JP5530239B2 (ja) 2014-06-25
US20100263372A1 (en) 2010-10-21

Similar Documents

Publication Publication Date Title
US8495876B2 (en) Two-stage supercharging system with exhaust gas purification device for internal-combustion engine and method for controlling same
KR101826571B1 (ko) 엔진 시스템
US7251932B2 (en) Exhaust system and method for controlling exhaust gas flow and temperature through regenerable exhaust gas treatment devices
JP4843035B2 (ja) エンジン排気温度を維持するエンジンおよび方法
US7877981B2 (en) Control strategy for turbocharged diesel engine
US7308788B1 (en) Engine and method for counteracting face plugging of a diesel oxidation catalyst
US20100043428A1 (en) Engine With Exhaust Temperature Control and Method of Controlling Engine Exhaust Gas Temperature and Engine Intake Temperature
US20070199320A1 (en) Flexible engine cooling and exhaust gas temperature controls for diesel after-treatment regeneration and engine performance improvement
US20130213363A1 (en) Method for operating an auto-ignition internal combustion engine
US7591131B2 (en) Low pressure EGR system having full range capability
US20090271094A1 (en) Engine with charge air recirculation and method
WO1999031373A1 (fr) Conception d'un moteur a combustion
JP2009024619A (ja) 内燃機関の排気制御装置
AU2007362594A1 (en) Engine cooling and exhaust gas temperature controls for diesel after-treatment regeneration
KR101683495B1 (ko) 터보차저를 갖는 엔진 시스템
JP2010270715A (ja) シーケンシャル式の２段式過給機付き内燃機関およびその制御方法
JP6357902B2 (ja) エンジンの排気再循環方法及び排気再循環装置
KR20110019116A (ko) 볼텍스튜브를 이용한 배기가스재순환시스템
US11698010B2 (en) Internal combustion engine system and a method of operating an internal combustion system
US10890142B2 (en) Device for controlling the amount of fluid fed to the intake of a supercharged internal-combustion engine equipped with an exhaust gas recirculation circuit and method using same
WO2015163227A1 (fr) Système hybride, véhicule à système hybride, et procédé rge pour système hybride
JP2021134687A (ja) 過給機付きエンジン
WO2010123409A1 (fr) Procédé et agencement de recirculation des gaz d'échappement d'un moteur à combustion
WO2013010923A1 (fr) Recirculation des gaz d'échappement dans un moteur à combustion interne
US20170167448A1 (en) Engine system

Legal Events

Date Code Title Description
AS Assignment

Owner name: IFP, FRANCE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:PAGOT, ALEXANDRE;WATEL, ERIC;SIGNING DATES FROM 20100517 TO 20100519;REEL/FRAME:024552/0743

STCF Information on status: patent grant

Free format text: PATENTED CASE

FPAY Fee payment

Year of fee payment: 4

FEPP Fee payment procedure

Free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

LAPS Lapse for failure to pay maintenance fees

Free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

STCH Information on status: patent discontinuation

Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362

FP Lapsed due to failure to pay maintenance fee

Effective date: 20210730